[WARNING] Method "public Class getClassByName(String)" is Deprecated, and may be removed in a future

[WARNING] Method "public Class getClassByName(String)" is Deprecated, and may be removed in a future version of Bukkit

What causes this?

 

Typically an outdated plugin. Post the whole error, including the backtrace that follows it.

 

Ok, nevermind all of this, I hate the new all-plugins-must-be-verified-every-update feature of bukkit and I am just going to start my server from scratch... Goodbye cruel server!

 

That's just bukkit telling you public class getclassbyname(string) is deprecated and may be removed in the future. If the error isn't a severe error it doesn't hurt your servers performance. Nothing to worry about.

 

Actually this is unrelated to that particular change. This error is harmless, apart from spamming your console.

 

I've got the same error, and the server is crashes in every 10 hours
Here is the full error:


Method "public Class<?> getClassByName(String)" is Deprecated, and may be removed in a future version of Bukkit
org.bukkit.plugin.AuthorNagException:
at org.bukkit.plugin.java.JavaPluginLoader.getClassByName(JavaPluginLoader.java:284)
at com.earth2me.essentials.storage.BukkitConstructor.getClassForNode(BukkitConstructor.java:421)
at org.yaml.snakeyaml.constructor.Constructor$ConstructYamlObject.getConstructor(Constructor.java:321)
at org.yaml.snakeyaml.constructor.Constructor$ConstructYamlObject.construct(Constructor.java:331)
at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:183)
at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:142)
at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:128)
at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:480)
at org.yaml.snakeyaml.Yaml.load(Yaml.java:423)
at com.earth2me.essentials.storage.YamlStorageReader.load(YamlStorageReader.java:47)
at com.earth2me.essentials.storage.AbstractDelayedYamlFileReader.run(AbstractDelayedYamlFileReader.java:38)
at org.bukkit.craftbukkit.v1_4_R1.scheduler.CraftTask.run(CraftTask.java:53)
at org.bukkit.craftbukkit.v1_4_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:53)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:722)
2013-03-11 14:45:23 [WARNING] Method "public Class<?> getClassByName(String)" is Deprecated, and may be removed in a future version of Bukkit
org.bukkit.plugin.AuthorNagException:
at org.bukkit.plugin.java.JavaPluginLoader.getClassByName(JavaPluginLoader.java:284)
at com.earth2me.essentials.storage.BukkitConstructor.getClassForNode(BukkitConstructor.java:421)
at org.yaml.snakeyaml.constructor.Constructor$ConstructYamlObject.getConstructor(Constructor.java:321)
at org.yaml.snakeyaml.constructor.Constructor$ConstructYamlObject.construct(Constructor.java:331)
at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:183)
at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:142)
at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:128)
at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:480)
at org.yaml.snakeyaml.Yaml.load(Yaml.java:423)
at com.earth2me.essentials.storage.YamlStorageReader.load(YamlStorageReader.java:47)
at com.earth2me.essentials.storage.AbstractDelayedYamlFileReader.run(AbstractDelayedYamlFileReader.java:38)
at org.bukkit.craftbukkit.v1_4_R1.scheduler.CraftTask.run(CraftTask.java:53)
at org.bukkit.craftbukkit.v1_4_R1.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:53)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:722)


Can you help me out of this??

 

is it that hard to read the thread you necroed and find out you need to update your plugins?